CHRYSOBERYL Gemstones

https://play.google.com/store/books/details?id=sWR-CgAAQBAJ

Ruby Gemstones

https://play.google.com/store/books/details?id=lWd-CgAAQBAJ

AMBER GEMSTONES

https://play.google.com/store/books/details?id=Z2R-CgAAQBAJ

Topaz Gemstones

https://play.google.com/store/books/details?id=p21-CgAAQBAJ

THE SICRETS OF ENENERGIZING GEMSTONES AND CRYSTALS

https://play.google.com/store/books/details?id=lavrAQAAQBAJ

BERAYL GEMSTONES

https://play.google.com/store/books/details?id=umd-CgAAQBAJ

TESTING THE COLOUR OF GEMSTONES

https://play.google.com/store/books/details?id=cTZ-CgAAQBAJ